The Viessmann 60/100mm Standard Horizontal Flue Kit is the current-generation 1 metre wall terminal for Vitodens gas condensing boilers, complete with the reduced height flue elbow that shaves 30mm off the connection height compared with the original terminal — a genuinely useful margin when a boiler has to go into a tight kitchen cupboard or low ceiling void.
This is the direct replacement for the older standard terminal, with a clip-on exchangeable terminal head and a combined adaptor ring and rain guard built into a single component, cutting the number of parts an installer has to fit on site.
60/100mm
Flue diameter
1m
Kit length
30mm
Elbow height reduction
≤2m
Grille required above ground
8 angles
Plume diverter positions
Direct fit
Vitodens 050/100/200-W
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Important Safety Information: If the external wall terminal finishes at 2 metres or less above ground level near a public footpath or road, a protective grille must be fitted (available as an accessory) to prevent accidental contact with the hot flue outlet.
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Please Note: The new Vitodens 100-W boilers ship with a modified drilling template that shows both the old and new terminal positions, so double-check which hole pattern applies before drilling — this avoids confusion where superseded kits are still in the supply chain.
Reduced height elbow
The elbow supplied with this kit is 30mm lower than the original design, giving valuable extra clearance in cupboard and void installations.
Clip-on terminal head
An easy exchangeable clip-on terminal speeds up replacement or servicing without disturbing the rest of the flue run.
Combined adaptor and rain guard
The adaptor ring and rain guard are combined into one component, reducing part count and installation time.
Optional plume diverter
An angled nozzle plume diverter accessory can be fitted in 8 different mounting angles, helping keep the plume clear of boundaries and adjacent walls.
Complete wall termination kit
Includes the flue terminal, reduced height elbow, internal and external wall bezels, and a silicone sealing sachet.
CE-designated system
Tested and CE-designated as one structural unit with the Vitodens boiler range in accordance with DVGW-VP 113.
Specification
Flue System
Diameter
60/100mm concentric
Kit length
1 metre (standard horizontal)
Elbow type
Reduced height (30mm lower than standard)
Termination
External wall, clip-on exchangeable terminal head
Compatibility
Boiler range
Viessmann Vitodens gas condensing boilers
System certification
CE-designated with Vitodens as one structural unit to DVGW-VP 113
Restriction
Only this flue system may be used with the compatible Vitodens boilers
Included In The Box
Flue terminal
Included
Reduced height flue elbow
Included
Internal and external wall bezels
Included
Silicone sealing sachet
Included
Does this kit fit the older Vitodens 100-W boilers as well as the current range?
Yes — Viessmann issues a drilling template covering both the superseded and current hole positions specifically to keep this kit compatible across the boiler range. Always confirm the exact appliance model before ordering.
Do I need a protective grille with this kit?
Only if the external termination point ends up at 2 metres or less above ground level near a public road or footpath. A matching grille accessory is available separately.
Can I add a plume diverter later?
Yes. The optional angled nozzle plume diverter is designed to work with this reduced height terminal and mounts in 8 different angles to redirect the exhaust plume away from boundaries.
Is this suitable for a combi, system or heat-only boiler?
Yes — the 60/100mm horizontal flue system is common across the compatible Vitodens combi, system and heat-only boiler ranges, subject to maximum flue length limits for the specific model.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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